Moments after the jump, Lee is struck and knocked out in a midair collision with a fellow skydiver. Lee's helmet cam records the heart-stopping video of him hurtling uncontrollably toward the earth.

What comes next is what's really amazing, though: Two other skydivers suddenly realize that Lee is in trouble and coordinate an effort to save him. As seen on the helmet cam, they use hand signals to get his free fall stabilized and get his parachute deployed.

The hapless skydiver regains consciousness only after his chute is open and as he is gliding to a (safe) landing.